Things have changed since then, as they’ve committed several changes, some of them related to AllWinner SoCs to their XBMC repository. I haven’t look into details, but it could be VidOn.me is now in compliance with the GPLv2 license which XBMC is licensed under. If the code is complete, another “side effect” could be there’s finally support for AllWinner A20 (and A10) for XBMC Android. Previsouly, some people tried the AV100 APK on other AllWinner A10/A20 devices, but it did not work, most probably because they locked the binary to their devices, something that would be more difficult to do if the code is complete. If VidOn.me XBMC’s version used a proprietary player however it may still not work. Nevertheless it may be worth a try. AllWinner A31 is already supported by default in XBMC 13.

@tucker fileds
Since then, I’ve been informed the source code released by VidOn.me is incomplete, so it is not usable.
So there may not be a way to run XBMC on Ruach box or other AllWinner A20 devices, unless you use XAF Custom build of XBMC, using an external player to play videos.